Bilstein B4 Series DampMatic shock absorbers are the original choice for vehicles equipped with mechanical amplitude-selective damping. This OE replacement front strut restores the factory handling characteristics and ride comfort of your Mercedes-Benz. Using Bilstein gas-pressure technology and DampMatic® valve adjustment, it reacts automatically to the road surface to provide both high comfort and sporty stability. Included part: 1x Bilstein 24-265157 Front Shock Absorber (Gas Pressure, Monotube/Twin-tube design depending on OE application).